JP4712465B2 - 回転電機及び電動車椅子 - Google Patents
回転電機及び電動車椅子 Download PDFInfo
- Publication number
- JP4712465B2 JP4712465B2 JP2005210496A JP2005210496A JP4712465B2 JP 4712465 B2 JP4712465 B2 JP 4712465B2 JP 2005210496 A JP2005210496 A JP 2005210496A JP 2005210496 A JP2005210496 A JP 2005210496A JP 4712465 B2 JP4712465 B2 JP 4712465B2
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- JP
- Japan
- Prior art keywords
- teeth
- electrical machine
- rotating electrical
- magnet
- cogging torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
- A61G5/045—Rear wheel drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1054—Large wheels, e.g. higher than the seat portion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
- A61G2203/14—Joysticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1005—Wheelchairs having brakes
- A61G5/1032—Wheelchairs having brakes engaging an element of the drive or transmission, e.g. drive belt, electrodynamic brake
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/34—Wheel chairs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Handcart (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
さらに、請求項1に記載の発明によれば、ロータの複数のマグネットを方形とすることで、低コストで低コギングトルクの回転電機を提供できる。すなわち、マグネットを単純な方形に構成することで、希土類焼結磁石などの加工費を低く抑え、低コストの回転電機とすることができる。また、そのように方形とすることで、マグネット間の隙間が外径側で広くなり大きなコギングトルクの原因となるが、ティースに凸部を設けることで低コギングトルク化が可能となる。
[発明の実施の形態1]
[発明の実施の形態2]
[発明の実施の形態3]
12 電動モータ(回転電機)
21 ステータ
30 ロータ軸
33 ロータヨーク
34 マグネット
47 ステータヨークコア
47a 嵌合孔
48 ティース
48d 対向面
48e 凸部
49 ボビン
50 コイル
52 樹脂
57 鋼板
C 間隙
H 高さ
L 幅
Claims (7)
- コイルを巻回した複数のティース及び該ティース間を繋ぐステータヨークコアを有するステータと、
前記ティースに間隙を介して対向して配置されるマグネットを有するロータとを備えた回転電機において、
前記ティースの、前記マグネットに対向する対向面には、ステータ周方向の略中心部に凸部を設け、
前記ティース対向面と前記マグネットとは、回転軸心方向に間隙を介して対向して配置されており、且つ、
前記マグネットは、複数に分割されており、各マグネットは方形を呈している、
ことを特徴とする回転電機。 - 前記凸部は、周方向の幅が径方向に沿って異なっていることを特徴とする請求項1に記載の回転電機。
- 前記凸部の高さが、前記径方向に沿って異なっていることを特徴とする請求項1又は2に記載の回転電機。
- 前記ティースは、同形状の複数の鋼板が前記径方向に積層されて構成されたことを特徴とする請求項1乃至3の何れか一つに記載の回転電機。
- 前記ティースは、複数の鋼板が前記周方向に積層されて構成されたことを特徴とする請求項1乃至3の何れか一つに記載の回転電機。
- 前記複数の鋼板が互いに凹凸嵌合されて積層されて構成されたことを特徴とする請求項4又は5に記載の回転電機。
- 請求項1乃至6の何れか一つに記載の回転電機が駆動輪に連結されて、前記回転電機の駆動力が前記駆動輪に伝達されるように構成されたことを特徴とする電動車椅子。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005210496A JP4712465B2 (ja) | 2005-07-20 | 2005-07-20 | 回転電機及び電動車椅子 |
CN2006101033313A CN1901324B (zh) | 2005-07-20 | 2006-07-18 | 旋转电机以及电动轮椅车 |
DE602006002931T DE602006002931D1 (de) | 2005-07-20 | 2006-07-19 | Rotierende elektrische Maschine und elektrischer Rollstuhl mit eingebauter rotierender elektrischer Maschine |
US11/489,699 US7592733B2 (en) | 2005-07-20 | 2006-07-19 | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
EP06015069A EP1746705B1 (en) | 2005-07-20 | 2006-07-19 | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005210496A JP4712465B2 (ja) | 2005-07-20 | 2005-07-20 | 回転電機及び電動車椅子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007028853A JP2007028853A (ja) | 2007-02-01 |
JP4712465B2 true JP4712465B2 (ja) | 2011-06-29 |
Family
ID=37137383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005210496A Expired - Fee Related JP4712465B2 (ja) | 2005-07-20 | 2005-07-20 | 回転電機及び電動車椅子 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7592733B2 (ja) |
EP (1) | EP1746705B1 (ja) |
JP (1) | JP4712465B2 (ja) |
CN (1) | CN1901324B (ja) |
DE (1) | DE602006002931D1 (ja) |
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JP4726564B2 (ja) | 2005-07-20 | 2011-07-20 | ヤマハ発動機株式会社 | 回転電機及び電動車椅子 |
JP4712465B2 (ja) | 2005-07-20 | 2011-06-29 | ヤマハ発動機株式会社 | 回転電機及び電動車椅子 |
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-
2006
- 2006-07-18 CN CN2006101033313A patent/CN1901324B/zh not_active Expired - Fee Related
- 2006-07-19 EP EP06015069A patent/EP1746705B1/en not_active Expired - Fee Related
- 2006-07-19 US US11/489,699 patent/US7592733B2/en not_active Expired - Fee Related
- 2006-07-19 DE DE602006002931T patent/DE602006002931D1/de active Active
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Also Published As
Publication number | Publication date |
---|---|
US7592733B2 (en) | 2009-09-22 |
CN1901324A (zh) | 2007-01-24 |
EP1746705A2 (en) | 2007-01-24 |
US20070018529A1 (en) | 2007-01-25 |
CN1901324B (zh) | 2010-12-22 |
JP2007028853A (ja) | 2007-02-01 |
EP1746705A3 (en) | 2007-05-02 |
EP1746705B1 (en) | 2008-10-01 |
DE602006002931D1 (de) | 2008-11-13 |
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